1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portlet.wiki.action;
24  
25  import com.liferay.portal.kernel.servlet.SessionErrors;
26  import com.liferay.portal.security.auth.PrincipalException;
27  import com.liferay.portal.struts.PortletAction;
28  import com.liferay.portal.util.WebKeys;
29  import com.liferay.portlet.wiki.NoSuchNodeException;
30  import com.liferay.portlet.wiki.NoSuchPageException;
31  import com.liferay.portlet.wiki.model.WikiNode;
32  
33  import javax.portlet.PortletConfig;
34  import javax.portlet.RenderRequest;
35  import javax.portlet.RenderResponse;
36  
37  import org.apache.struts.action.ActionForm;
38  import org.apache.struts.action.ActionForward;
39  import org.apache.struts.action.ActionMapping;
40  
41  /**
42   * <a href="ViewPageAction.java.html"><b><i>View Source</i></b></a>
43   *
44   * @author Brian Wing Shun Chan
45   * @author Jorge Ferrer
46   */
47  public class ViewPageAction extends PortletAction {
48  
49      public ActionForward render(
50              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
51              RenderRequest renderRequest, RenderResponse renderResponse)
52          throws Exception {
53  
54          try {
55              WikiNode node = ActionUtil.getNode(renderRequest);
56  
57              if (node == null) {
58                  ActionUtil.getFirstVisibleNode(renderRequest);
59              }
60  
61              ActionUtil.getPage(renderRequest);
62          }
63          catch (Exception e) {
64              if (e instanceof NoSuchNodeException ||
65                  e instanceof NoSuchPageException ||
66                  e instanceof PrincipalException) {
67  
68                  SessionErrors.add(renderRequest, e.getClass().getName());
69  
70                  return mapping.findForward("portlet.wiki.error");
71              }
72              else {
73                  throw e;
74              }
75          }
76  
77          return mapping.findForward(
78              getForward(renderRequest, "portlet.wiki.view_page"));
79      }
80  
81      protected void getNode(RenderRequest renderRequest) throws Exception {
82          ActionUtil.getNode(renderRequest);
83  
84          WikiNode node = (WikiNode)renderRequest.getAttribute(WebKeys.WIKI_NODE);
85  
86          if (node != null) {
87              return;
88          }
89  
90          ActionUtil.getFirstVisibleNode(renderRequest);
91      }
92  
93      protected boolean isCheckMethodOnProcessAction() {
94          return false;
95      }
96  
97  }